not sure what you mean. The bug reports were not correlated, and the
previous one was on the 1.6 series which I understand had a fairly
outdated version of ROMIO.

We had last year a bug report from a user with a problem with 0 byte
file view, and added special code for handling that in OMPIO. I would
have to dig up the details, but if I remember correctly OMPIO doesn't
even go into the derived datatype code if the size of the fileview is
zero, and I would suspect that's why we pass the test. I was curious
whether that fix would work for this scenario as well.